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Diane Lane has appeared as Superman's mother in Man of Steel and last year's Batman V Superman: Dawn of Justice, two major DCEU movies. She is also a highly experienced Hollywood star who should know better.

The actress was being interviewed on US chat show, Watch What Happens Live With Andy Cohen.

A fan called in and asked: "Can you give us any Justice League spoiler and do you think it will be better than the Avengers?"

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Lane replied: "No, and no. Short but honest. I hate to disappoint."

The fact that she can't reveal any spoilers is hardly a surprise, but did she really say that the hugely-anticipated Justice League movie couldn't match its comic book rivals?

Everything in the DCEU has been building to this years's blockbuster, when all the major heroes from Batman and Superman to Wonder Woman, Aquaman, Cyborg and The Flash will finally join up on screen.